Phytochrome diversity in green plants and the origin of canonical plant phytochromes
Open Access
- 28 July 2015
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Communications
- Vol. 6 (1), 7852
- https://doi.org/10.1038/ncomms8852
Abstract
Phytochromes are red/far-red photoreceptors that play essential roles in diverse plant morphogenetic and physiological responses to light. Despite their functional significance, phytochrome diversity and evolution across photosynthetic eukaryotes remain poorly understood. Using newly available transcriptomic and genomic data we show that canonical plant phytochromes originated in a common ancestor of streptophytes (charophyte algae and land plants). Phytochromes in charophyte algae are structurally diverse, including canonical and non-canonical forms, whereas in land plants, phytochrome structure is highly conserved. Liverworts, hornworts and Selaginella apparently possess a single phytochrome, whereas independent gene duplications occurred within mosses, lycopods, ferns and seed plants, leading to diverse phytochrome families in these clades. Surprisingly, the phytochrome portions of algal and land plant neochromes, a chimera of phytochrome and phototropin, appear to share a common origin. Our results reveal novel phytochrome clades and establish the basis for understanding phytochrome functional evolution in land plants and their algal relatives.Keywords
This publication has 66 references indexed in Scilit:
- CodonPhyML: Fast Maximum Likelihood Phylogeny Estimation under Codon Substitution ModelsMolecular Biology and Evolution, 2013
- Hornwort pyrenoids, carbon-concentrating structures, evolved and were lost at least five times during the last 100 million yearsProceedings of the National Academy of Sciences, 2012
- PartitionFinder: Combined Selection of Partitioning Schemes and Substitution Models for Phylogenetic AnalysesMolecular Biology and Evolution, 2012
- Phytochrome signaling mechanisms and the control of plant developmentTrends in Cell Biology, 2011
- ProtTest 3: fast selection of best-fit models of protein evolutionBioinformatics, 2011
- Phytochrome functions in Arabidopsis developmentJournal of Experimental Botany, 2009
- Evidence for a Cenozoic radiation of ferns in an angiosperm-dominated canopyProceedings of the National Academy of Sciences, 2009
- A single chromoprotein with triple chromophores acts as both a phytochrome and a phototropinProceedings of the National Academy of Sciences of the United States of America, 2006
- RAxML-VI-HPC: maximum likelihood-based phylogenetic analyses with thousands of taxa and mixed modelsBioinformatics, 2006
- MUSCLE: multiple sequence alignment with high accuracy and high throughputNucleic Acids Research, 2004